I'm trying to find out if the flights I want on Aer Lingus do or do not include checked baggage. (I can't make the reservations on Aer Lingus' own website because I need three flights; Aer Lingus only allows you to make reservations for two flights, so I need make them somewhere else.)

On matrix.itasoftware.com, I'm seeing the following info., but I don't know what the booking codes mean (to those in the know, do the codes indicate whether or not a free checked bag is included?)--and note than when I click on "rules," I don't see anything about luggage...
​​​​​​Fare 1: Carrier EI WHSL19US MSP to AMS (rules)Passenger type ADT, round trip fare, booking code W, ACovers MSP-DUB (Economy), DUB-AMS (Economy)$331.00Fare 2: Carrier EI AKDGDS26 KIR to DUB (rules)Passenger type ADT, one-way fare, booking code ACovers KIR-DUB (Economy)$20.54Fare 3: Carrier EI WHSL19US AMS to MSP (rules)Passenger type ADT, round trip fare, booking code A, WCovers AMS-DUB (Economy), DUB-MSP (Economy)$331.00